Hightower | Our new FourSure® has the durable shell users have loved for years, now with a bit more seat room plus soft, organic curves. FourSure® is the perfect choice for workspace, meeting, lecture and dining areas with its superior lumbar support thanks to the recognizable “V” back. Endless combinations to perfectly align with your specific interior design goals. Our FourSure® is stackable too! Stacks 12 high without upholstery and 10 high with upholstery or stack up to 35 with trolley.